IT1147973B - Sistema soppressore dei modi trasversali di ordine superiore in cavita' risonanti di giroscopi a laser - Google Patents

Sistema soppressore dei modi trasversali di ordine superiore in cavita' risonanti di giroscopi a laser

Info

Publication number
IT1147973B
IT1147973B IT48428/82A IT4842882A IT1147973B IT 1147973 B IT1147973 B IT 1147973B IT 48428/82 A IT48428/82 A IT 48428/82A IT 4842882 A IT4842882 A IT 4842882A IT 1147973 B IT1147973 B IT 1147973B
Authority
IT
Italy
Prior art keywords
higher order
resonant cavities
suppressor system
laser gyroscopes
transversal modes
Prior art date
Application number
IT48428/82A
Other languages
English (en)
Italian (it)
Other versions
IT8248428A0 (it
Inventor
Michael S Perlmutter
Kenneth N Braun
Original Assignee
Raytheon Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Raytheon Co filed Critical Raytheon Co
Publication of IT8248428A0 publication Critical patent/IT8248428A0/it
Application granted granted Critical
Publication of IT1147973B publication Critical patent/IT1147973B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08059—Constructional details of the reflector, e.g. shape
    • H01S3/08068—Holes; Stepped surface; Special cross-section
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/58—Turn-sensitive devices without moving masses
    • G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
    • G01C19/66—Ring laser gyrometers
    • G01C19/667—Ring laser gyrometers using a multioscillator ring laser

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)
  • Lasers (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Optical Elements Other Than Lenses (AREA)
IT48428/82A 1981-05-20 1982-05-14 Sistema soppressore dei modi trasversali di ordine superiore in cavita' risonanti di giroscopi a laser IT1147973B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/265,712 US4519708A (en) 1981-05-20 1981-05-20 Mode discrimination apparatus

Publications (2)

Publication Number Publication Date
IT8248428A0 IT8248428A0 (it) 1982-05-14
IT1147973B true IT1147973B (it) 1986-11-26

Family

ID=23011589

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48428/82A IT1147973B (it) 1981-05-20 1982-05-14 Sistema soppressore dei modi trasversali di ordine superiore in cavita' risonanti di giroscopi a laser

Country Status (14)

Country Link
US (1) US4519708A (fr)
JP (1) JPS57210681A (fr)
AU (2) AU553685B2 (fr)
BE (1) BE893254A (fr)
CA (1) CA1201190A (fr)
CH (1) CH661154A5 (fr)
DE (1) DE3217916C2 (fr)
DK (1) DK164412C (fr)
FR (1) FR2506451B1 (fr)
GB (1) GB2099178B (fr)
IT (1) IT1147973B (fr)
NL (1) NL185687C (fr)
NO (1) NO164440C (fr)
SE (1) SE451889B (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143076A (en) * 1983-07-05 1985-01-30 Litton Systems Inc Laser mode control
US5357338A (en) * 1983-07-11 1994-10-18 Litton Systems, Inc. Path length controller with offset bias for a ring laser gyro
US4672625A (en) * 1984-03-30 1987-06-09 Spectra-Physics, Inc. Methods and apparatus for maximizing the power output of a gas laser
US4742506A (en) * 1984-07-12 1988-05-03 Sony Corporation Tracking error detecting apparatus for an optical head with skew error reduction by using an inclined header portion
US4559475A (en) * 1984-07-12 1985-12-17 The United States Of America As Represented By The Secretary Of The Navy Quasi-optical harmonic gyrotron and gyroklystron
US4821282A (en) * 1985-12-27 1989-04-11 Honeywell Inc. Mirror assembly for lasers
US4865436A (en) * 1986-03-25 1989-09-12 Honeywell Inc. Low cost ring laser angular rate sensor
US4865451A (en) * 1986-12-22 1989-09-12 Ahonen Robert G Silicon substrate mirror assembly for lasers
EP0294459B1 (fr) * 1986-12-22 1992-03-25 Honeywell Inc. Assemblage de miroir pour lasers
US4962506A (en) * 1988-04-14 1990-10-09 Litton Systems, Inc. Scatter symmetrization in multi-mode ring laser gyros
US5495335A (en) * 1989-04-05 1996-02-27 Litton Systems, Inc. Ring laser gyroscope with a non-loss inducing mode suppression mechanism
CA2037428C (fr) * 1990-03-05 1997-04-01 Akira Takahashi Dispositif de lecture optique de supports d'enregistrement magneto-optiques
US5166949A (en) * 1990-12-20 1992-11-24 Northrop Corporation Method and apparatus for suppressing off-axis modes in laser and ring laser gyroscopes
CA2154726A1 (fr) 1994-07-27 1996-01-28 Robert M. Curran Gravure au laser d'ouvertures de discrimination de modes transverses sur les miroirs de gyrolasers
US5663792A (en) * 1996-02-09 1997-09-02 Killpatrick; Joseph E. Transverse mode selected operation for a ring laser
FR2751795B1 (fr) * 1996-07-26 1998-08-28 Commissariat Energie Atomique Cavite microlaser et microlaser a selection de mode, et procedes de fabrication
GB2352050A (en) * 1999-07-13 2001-01-17 Coherent Optics Interference filters
US7535573B2 (en) * 2006-02-23 2009-05-19 Picarro, Inc. Cavity enhanced optical spectroscopy with a cavity having a predetermined deviation from a mode degeneracy condition
WO2010019531A1 (fr) * 2008-08-12 2010-02-18 Lockheed Martin Corporation Résonateur à suppression de mode
CN102645214B (zh) * 2012-04-10 2014-12-31 浙江大学 一种具有温度稳定性的光波导谐振腔

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1482754A (en) * 1920-08-07 1924-02-05 Laughlin Myron Penn Liquid-feed regulator
US3045530A (en) * 1960-07-14 1962-07-24 Agency Ind Science Techn Optical system having aberration correcting plate member with ring shaped phase retarding layers
US3292103A (en) * 1963-03-15 1966-12-13 Jack A Soules Laser image amplifying system
US3309621A (en) * 1963-06-24 1967-03-14 Hughes Aircraft Co Mode controlled laser
US3365671A (en) * 1966-07-12 1968-01-23 Bell Telephone Labor Inc Multiple-pass molecular laser amplifier with masking to prevent oscillations
US3603688A (en) * 1967-11-08 1971-09-07 Perkin Elmer Corp Alignment apparatus
US3573656A (en) * 1968-12-23 1971-04-06 Bell Telephone Labor Inc Laser oscillator with mode selector
US3741657A (en) * 1971-03-03 1973-06-26 Raytheon Co Laser gyroscope
DE2127483A1 (de) * 1971-06-03 1972-12-14 Leitz Ernst Gmbh Verfahren zur interferentiellen Messung von Langen, Winkeln, Gangunter schieden oder Geschwindigkeiten
US4006989A (en) * 1972-10-02 1977-02-08 Raytheon Company Laser gyroscope
US3882415A (en) * 1973-02-13 1975-05-06 Owens Illinois Inc Glass laser discs with annular alkali lead borate coatings and uses thereof
GB1406730A (en) * 1973-12-20 1975-09-17 Sperry Rand Corp Ring lasers
FR2256563A1 (en) * 1973-12-28 1975-07-25 Sperry Rand Corp Ring laser closed loop optical cavity system - has light reflecting frequency biasing element for phase shift imparting
DE2400346C2 (de) * 1974-01-04 1983-02-17 Sperry Corp., 10019 New York, N.Y. Ringlaser sowie magnetischer Vorspannungsspiegel zur Verwendung als reflektierendes Bauteil des optischen Hohlraumes eines Ringlasers
GB1482754A (en) * 1974-02-06 1977-08-17 Emi Ltd Lasers
CH583978A5 (fr) * 1974-02-26 1977-01-14 Lasag Sa
GB1529813A (en) * 1974-10-16 1978-10-25 Siemens Ag Narrow-band interference filter
NL7511581A (nl) * 1975-10-02 1977-04-05 Philips Nv Reflektor.
CA1077602A (fr) * 1976-01-02 1980-05-13 Raytheon Company Resonateur d'ondes electromagnetiques en anneau
US4110045A (en) * 1976-01-02 1978-08-29 Raytheon Company Electromagnetic wave ring resonator
US4108553A (en) * 1977-01-04 1978-08-22 Raytheon Company Laser gyroscope detector and path length control system
US4141651A (en) * 1977-01-10 1979-02-27 Raytheon Company Laser gyroscope output optics structure
GB2006515B (en) * 1977-10-18 1982-03-03 Atomic Energy Authority Uk Laser apparatus
FR2409518A1 (fr) * 1977-11-22 1979-06-15 Thomson Csf Gyrometre interferometrique a laser
DE2804103A1 (de) * 1978-01-31 1979-08-02 Siemens Ag Interferometer mit einer spule aus einem einmode-wellenleiter
DE2804119A1 (de) * 1978-01-31 1979-08-02 Siemens Ag Interferometer mit einer spule aus einem einmode-wellenleiter
GB1596319A (en) * 1978-02-14 1981-08-26 Emi Ltd Lasers
DE2814476A1 (de) * 1978-04-04 1979-10-18 Siemens Ag Interferometer mit einer spule aus einem einmode-wellenleiter
US4229106A (en) * 1978-05-18 1980-10-21 Raytheon Company Electromagnetic wave ring resonator
US4219275A (en) * 1978-06-22 1980-08-26 Rockwell International Corporation Ring laser having magnetic isolation of counter-propagating light waves
US4219254A (en) * 1978-08-11 1980-08-26 Macken John A Corrective optics for higher order mode lasers
IL57936A (en) * 1978-10-02 1982-07-30 Litton Systems Inc Ring laser with adjustable mirrors
CA1145023A (fr) * 1979-02-22 1983-04-19 John C. Stiles Ouvertures a faible perte pour gyroscopes a laser a anneau
DE2911129A1 (de) * 1979-03-21 1980-10-16 Siemens Ag Ringinterferometer mit einem zu einer spule gewickelten einmode-lichtwellenleiter
GB2050683B (en) * 1979-06-02 1983-09-14 Ferranti Ltd Lasers
DE2936284C3 (de) * 1979-09-07 2003-03-27 Litef Gmbh Ringinterferometer
US4494873A (en) * 1981-02-17 1985-01-22 Raytheon Company Electromagnetic wave reflections absorber

Also Published As

Publication number Publication date
JPS57210681A (en) 1982-12-24
AU553685B2 (en) 1986-07-24
GB2099178A (en) 1982-12-01
CH661154A5 (de) 1987-06-30
GB2099178B (en) 1985-10-23
NO164440B (no) 1990-06-25
NL185687B (nl) 1990-01-16
IT8248428A0 (it) 1982-05-14
NL8202002A (nl) 1982-12-16
AU572392B2 (en) 1988-05-05
NL185687C (nl) 1990-06-18
AU5703086A (en) 1986-09-11
DE3217916C2 (de) 1995-04-20
SE451889B (sv) 1987-11-02
BE893254A (fr) 1982-09-16
FR2506451A1 (fr) 1982-11-26
SE8203079L (sv) 1982-11-21
JPH0117275B2 (fr) 1989-03-29
DE3217916A1 (de) 1982-12-09
US4519708A (en) 1985-05-28
NO164440C (no) 1990-10-10
CA1201190A (fr) 1986-02-25
NO821656L (no) 1983-01-26
FR2506451B1 (fr) 1986-03-14
DK164412B (da) 1992-06-22
DK226782A (da) 1983-01-07
AU8301882A (en) 1982-11-25
DK164412C (da) 1992-11-09

Similar Documents

Publication Publication Date Title
IT1147973B (it) Sistema soppressore dei modi trasversali di ordine superiore in cavita' risonanti di giroscopi a laser
ES514494A0 (es) "un metodo de licuar una carga de vidrio".
IT8548208A0 (it) Sistema di riferimento inerziale
KR880701028A (ko) 레이저 공진기
IT1190997B (it) Sospensione per giroscopio laser ad anello
FR2497570B1 (fr) Gyroscope a laser
ITMI931436A0 (it) Giunto girevole omocinetico
IT1198444B (it) Metodo e sistema di controllo per una cavita' di giroscopio ad anello laser
IT1199054B (it) Giroscopio a laser con specchi vibrati e vibratore di corrente
IT8448635A0 (it) Giroscopio a laser ad anello sistema catodico in particolare per
GB2138624B (en) Dithered laser gyro
DK554289A (da) Helium-neonlaser
IT8867973A0 (it) Giunto di trasmissione omocinetico
ES513698A0 (es) "un metodo de fabricar una unidad de construccion".
NO178515C (no) Lasersystem
BR8200369A (pt) Bloco oco de construcao e sistema de blocos de construcao
IT1142023B (it) Procedimento per la preparazione di percarbonato di sodio
ES544975A0 (es) Un metodo de solidificacion de una suspension residual
IT1227100B (it) Metodo per determinare la saldabilita' di una parte
DE69313961D1 (de) Vibratorgyroskop
IL100851A0 (en) Method of making laser gyro resonator blocks
IT1152803B (it) Metodo e dispositivo per l'applicazione di una racla
FR2585417B3 (fr) Noeuds d'assemblage pour charpente tridimensionnelle
IT1191184B (it) Risonatore laser
GB8619017D0 (en) Laser plasma & optical resonator structures

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970526